ASABE revised its standard on polyethylene pipe used in microirrigation. As complete rewrite of previous standard, ASAE S435.1, Polyethylene Pipe Used for Microirrigation Laterals, reflects current best practices. It contains requirements and methods for testing of polyethylene materials and of pipe or tubing made from those materials for microirrigation. Also, standard covers classification, nomenclature, test requirements and methods, workmanship, dimensions, and methods of marking.